Adds a new merge commitSha restoration script (`scripts/restore-merge-sha-fn-3878.mjs`) with test coverage to handle a specific FN-3878 merge case, along with a changeset for publishing and a minor plugin vitest config governance alignment across three plugins.
Fusion-Task-Id: FN-3878
- Extend PluginOnUnload to receive runtime context and wire ctx through plugin-loader unload hooks
- Scope WhatsApp chat plugin connections by project root to avoid cross-project session leakage
- Update plugin authoring docs and add a patch changeset for @runfusion/fusion
- Align plugin test suites across WhatsApp and example/runtime plugins with the new onUnload context contract
Fusion-Task-Id: FN-3794
Merges the reports plugin scaffold (FN-3778, FN-3790) with notification service improvements across the engine, plus mailbox UI enhancements; adds WhatsApp message deduplication retention pruning (FN-3795) with tests and documentation; introduces /tasks deep-link routing with theme-data URL resoluti
Fusion-Task-Id: FN-3795
Adds a WhatsApp chat plugin (`plugins/fusion-plugin-whatsapp-chat/`) as the first bundled plugin, including the plugin package with UI rendering, dashboard plugin manager integration, CLI bundling support, and plugin route runtime context. Also updates documentation to cover plugin management and ap
Fusion-Task-Id: FN-3714
